cmos checksum error

  sirduke 06:51 23 Jan 2006

when booting up xp i get cmos checksum error message and my keyboard and mouse dont work to get into the bios setup,having read all the postings here i changed the mboard battery but still the same mboard is AOPEN MX4LR with 756 RAM and p4 1.60 proc can anybody help please

  PC Bilbo 07:54 23 Jan 2006

Can you give more info please. Is this a fresh install? If so are you using a PS2 kboard and mouse.

Have you also tried clearing CMOS using the jumper pin JP15 as described in manualand setting defaults in BIOS?

  sirduke 18:04 23 Jan 2006

yes it is a fresh install and ps2 keyboard and mouse,i have also cleared cmos

  woodchip 18:44 23 Jan 2006

click here
Ether CMOS chip faulty, Jumper not in run position, You have changed the battery so only thing that may fix it other than above is a BIOS flash update. Try removing the Chip then refit it

  woodchip 18:46 23 Jan 2006
  sirduke 21:46 23 Jan 2006

how do i remove chip without damaging it,cos it seems very brittle

  PC Bilbo 21:50 23 Jan 2006

You really need an extractor tool specific for the purpose.

  sirduke 21:39 03 Feb 2006

thanks for all your help
i actually had a faulty ide ribbon, replaced it and all was fine

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